Figure 1.

Associations of Helicobacter pylori infection, overall and by individual biomarkers, with risks of non-cardia gastric cancer and cardia gastric cancer

H pylori infection was established using epidemiological criteria. Cox regression, with the time in the study as the timescale fitted using the Borgan III estimator, was used to estimate HRs, with adjustment for age, sex, area, and education. The black squares represent the adjusted HRs, with the area inversely proportional to the variance of the log HRs, and the horizontal lines representing their corresponding 95% CIs. HR=hazard ratio.